; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 5 ; RUN: llc -mtriple=riscv64 < %s | FileCheck %s --check-prefixes=CHECK,NOZBS ; RUN: llc -mtriple=riscv64 -mattr=+zbs < %s | FileCheck %s --check-prefixes=CHECK,ZBS define i64 @add_b31(i64 %x) { ; NOZBS-LABEL: add_b31: ; NOZBS: # %bb.0: ; NOZBS-NEXT: lui a1, 524288 ; NOZBS-NEXT: sub a0, a0, a1 ; NOZBS-NEXT: ret ; ; ZBS-LABEL: add_b31: ; ZBS: # %bb.0: ; ZBS-NEXT: bseti a1, zero, 31 ; ZBS-NEXT: add a0, a0, a1 ; ZBS-NEXT: ret %add = add i64 %x, 2147483648 ret i64 %add } define i64 @add_b32(i64 %x) { ; NOZBS-LABEL: add_b32: ; NOZBS: # %bb.0: ; NOZBS-NEXT: li a1, -1 ; NOZBS-NEXT: slli a1, a1, 32 ; NOZBS-NEXT: add a0, a0, a1 ; NOZBS-NEXT: ret ; ; ZBS-LABEL: add_b32: ; ZBS: # %bb.0: ; ZBS-NEXT: bseti a1, zero, 32 ; ZBS-NEXT: sub a0, a0, a1 ; ZBS-NEXT: ret %add = add i64 %x, -4294967296 ret i64 %add } define i64 @sub_0xffffffffff(i64 %x) { ; CHECK-LABEL: sub_0xffffffffff: ; CHECK: # %bb.0: ; CHECK-NEXT: li a1, -1 ; CHECK-NEXT: srli a1, a1, 24 ; CHECK-NEXT: sub a0, a0, a1 ; CHECK-NEXT: ret %sub = sub i64 %x, 1099511627775 ret i64 %sub } define i64 @add_multiuse(i64 %x) { ; CHECK-LABEL: add_multiuse: ; CHECK: # %bb.0: ; CHECK-NEXT: li a1, -1 ; CHECK-NEXT: slli a1, a1, 40 ; CHECK-NEXT: addi a1, a1, 1 ; CHECK-NEXT: add a0, a0, a1 ; CHECK-NEXT: and a0, a0, a1 ; CHECK-NEXT: ret %add = add i64 %x, -1099511627775 %and = and i64 %add, -1099511627775 ret i64 %and } define i64 @add_multiuse_const(i64 %x, i64 %y) { ; CHECK-LABEL: add_multiuse_const: ; CHECK: # %bb.0: ; CHECK-NEXT: li a2, -1 ; CHECK-NEXT: srli a2, a2, 24 ; CHECK-NEXT: sub a0, a0, a2 ; CHECK-NEXT: sub a1, a1, a2 ; CHECK-NEXT: xor a0, a0, a1 ; CHECK-NEXT: ret %a = add i64 %x, -1099511627775 %b = add i64 %y, -1099511627775 %xor = xor i64 %a, %b ret i64 %xor }